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���_c @ sU d Z d e f d � � YZ d e f d � � YZ d e f d � � YZ d � Z d S( s0 Useful mixins for Challenge and Resource objectst VersionedLEACMEMixinc B s8 e Z d Z e d � � Z e j d � � Z d � Z RS( sE This mixin stores the version of Let's Encrypt's endpoint being used.c C s t | d d � S( s* Define the version of ACME protocol to uset _le_acme_versioni ( t getattr( t self( ( s/ /usr/lib/python2.7/site-packages/acme/mixins.pyt le_acme_version s c C s t j | d | � d S( NR ( t objectt __setattr__( R t version( ( s/ /usr/lib/python2.7/site-packages/acme/mixins.pyR s c C s? | d k r"